Instagram knows more about photography than Getty Images does. Or Corbis. Or Associated press. Or even Shutterstock. In 3 years years, it has aggregated more information about which photograph works better than the combinations of the best photo editors at any photo agency. It is not just Instagram. Flickr does too, although they might not know it yet ( at least they are not showing visible signs of awareness). And Pinterest. And the many, many tech companies whose job it is to help brands monetize…